scrum

1(formalscrummage)a part of a rugby game when players from both sides link themselves together in a group, with their heads down, and push against the other side. The ball is then thrown between them and each side tries to get it.See related entries:Rugby

2the group of players who link themselves together in a scrum

3(especially British English)a crowd of people who are pushing each otherThere was a real scrum when the bus arrived.